GOOS/GOARCH combos on macOS

The following is a survey of GOOS/GOARCH support on my Mac, using src/go/build/syslist.go@7cbfa5 as the source of combinations to try. The following table shows combinations that built successfully (✅) and those that failed (❌). The rest, denoted by ‘—’, were reported by Go as unsupported combinations, e.g.:

$ GOOS=js GOARCH=386 go build
cmd/go: unsupported GOOS/GOARCH pair js/386

GOARCH → GOOS ↓	386	amd64	amd64-p32	arm	arm64	mips/le mips64/le ppc64/le s390x	riscv64	wasm
android	❌¹	❌¹	—	❌¹	❌¹	—	—	—
darwin	✅	✅	—	❌²	❌²	—	—	—
dragonfly	—	✅	—		—	—	—	—
freebsd	✅	✅	—	✅	—	—	—	—
js	—	—	—	—	—	—	—	✅
linux	✅	✅	—	✅	✅	✅	❌³	—
nacl	✅	—	✅	✅	—	—	—	—
netbsd	✅	✅	—	✅	—	—	—	—
openbsd	✅	✅	—	✅	—	—	—	—
plan9	✅	✅	—	✅	—	—	—	—
solaris	—	✅	—	—	—	—	—	—
windows	✅	✅	—	—	—	—	—	—

¹ ld: unknown option: -z
² ld: symbol(s) not found for architecture x86_64 (_main)
³ compile: unknown architecture "riscv64"

The following OSes and architectures had no support at all:

OSes: aix hurd zos
architectures: arm(64)?be mips64p32(le)? ppc riscv s390 sparc(64)?

Config

$ uname -a
Darwin … 18.2.0 Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64 x86_64 i386 MacBookPro10,1 Darwin
$ go version
go version go1.11.4 darwin/amd64

Detailed output for failed builds

$ cat hello.go
package main

import (
	"fmt"
)

func main() {
	fmt.Println("Hello, playground")
}
$ GOOS=android GOARCH=386 go build
# play/hello
/usr/local/Cellar/go/1.11.4/libexec/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
ld: unknown option: -z
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$ GOOS=android GOARCH=amd64 go build
# play/hello
/usr/local/Cellar/go/1.11.4/libexec/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
ld: unknown option: -z
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$ GOOS=android GOARCH=arm go build
# play/hello
/usr/local/Cellar/go/1.11.4/libexec/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
ld: unknown option: -z
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$ GOOS=android GOARCH=arm64 go build
# play/hello
/usr/local/Cellar/go/1.11.4/libexec/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
ld: unknown option: -z
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$ GOOS=darwin GOARCH=arm go build
# play/hello
/usr/local/Cellar/go/1.11.4/libexec/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
ld: warning: ignoring file /var/folders/x_/03w67k_92jq2xn2zbgm2n9k40000gn/T/go-link-440104962/go.o, file was built for armv7 which is not the architecture being linked (x86_64): /var/folders/x_/03w67k_92jq2xn2zbgm2n9k40000gn/T/go-link-440104962/go.o
Undefined symbols for architecture x86_64:
  "_main", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$ GOOS=darwin GOARCH=arm64 go build
# play/hello
/usr/local/Cellar/go/1.11.4/libexec/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
ld: warning: ignoring file /var/folders/x_/03w67k_92jq2xn2zbgm2n9k40000gn/T/go-link-419067768/go.o, file was built for unsupported file format ( 0xCF 0xFA 0xED 0xFE 0x0C 0x00 0x00 0x01 0x00 0x00 0x00 0x00 0x01 0x00 0x00 0x00 ) which is not the architecture being linked (x86_64): /var/folders/x_/03w67k_92jq2xn2zbgm2n9k40000gn/T/go-link-419067768/go.o
Undefined symbols for architecture x86_64:
  "_main", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

$ GOOS=linux GOARCH=riscv64 go build
go tool compile: exit status 2
compile: unknown architecture "riscv64"
go tool compile: exit status 2
compile: unknown architecture "riscv64"

The last one is not a copy-paste mistake. The linux/riscv64 combination produces duplicate error messages, usually double, but on one run it printed the same error eight times.